It's good that you came here. As humans we need to understand that God has rights just like people have rights and other creatures have rights.
Islam is about restoring to everything that is their proper rights, and that includes God and all of creation. In fact, God's right is the most inviolable of them all. So what is this right God has against us? He is the Most Merciful, so there's only one small thing he asks of us: that he alone be worshipped without associates.
For that God sent out his prophets and messengers to all of humanity carrying only that message: "O people, serve God alone! You have no other gods beside Him. Do you have no fear?" But despite what a small and simple concept it is, most people refuse to give God His right. Even despite the great reward and success that would be attained from doing so, as we learn from the Prophet Muhammad's (peace be upon him) saying:
The Prophet (ﷺ) said, "O Mu`adh! Do you know what Allah's Right upon His slaves is?" I said, "Allah and His Apostle know best." The Prophet (ﷺ) said, "To worship Him (Allah) Alone and to join none in worship with Him (Allah). Do you know what their right upon Him is?" I replied, "Allah and His Apostle know best." The Prophet (ﷺ) said, "Not to punish them (if they do so). (Bukhari 7373)
There will be, at the end of time, one tremendous day where all the wrongs are righted, all the justice is restored, all the injustices wiped out even between the horned animal and the hornless animal, no matter how insignificant. This is the Day of Judgement, and it's an inevitable day that has been promised by God.
The right of the one who doesn't associate partners with God, who believes monotheism (tawhid) and keeps its conditions, his right is pardon and forgiveness from God on a day where the faces will be blackened with regret.
So how great is this attainment? And how gainful is this transaction? Yet, most people are distracted by the world. Be not among them. That is what you can do.